What is the working principle of wireless infrared detector, and what is the difference between it and ordinary infrared detector?

Infrared detector is a device that converts incident infrared radiation signals into electrical signals and outputs them. ?

Infrared radiation is an electromagnetic wave with a wavelength between visible light and microwave, which is imperceptible to human eyes. It is necessary to detect the existence and measure the intensity of this radiation and convert it into other physical quantities that can be detected and measured. Generally speaking, any effect of infrared radiation on an object can be used to measure the intensity of infrared radiation, as long as the effect is measurable and sensitive enough. Modern infrared detectors mainly use infrared thermal effect and photoelectric effect. The output of these effects is mostly electric energy, which can also be converted into electric energy by appropriate methods.

The basic principle of wireless infrared detector is a device that converts incident infrared radiation signals into electrical signals for output. Infrared radiation is an electromagnetic wave with a wavelength between visible light and microwave, which is imperceptible to human eyes. It is necessary to detect the existence and measure the intensity of this radiation and convert it into other physical quantities that can be detected and measured. Generally speaking, any effect of infrared radiation on an object can be used to measure the intensity of infrared radiation, as long as the effect is measurable and sensitive enough.